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Question
What happens if the air pressure in a system's air tanks falls below 60 psi?
Answers
A.  A warning light will come on.
B.  The vehicle will not shift out of gear.
C.  The front lights will flash.
D.  The vehicle should stop.
Explanation
In an air brake system, a low pressure warning signal should activate if the pressure in the air tanks falls to a level below 60 psi. This signal may be in the form of a warning light or a wig wag.
Answer Statistics
6.14 % of our users get this question wrong.
This question's difficulty is Medium

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